Dry Pressing 99.5% Alumina Ceramic Ring for Semiconductor Industry

Prod Model:	ALU
Markets:	North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
Al2O3:	95-99.7%
Further Processing:	with Holes Ect
Surface:	Polished

Product Description

Our ceramic products are widely used in various fields of automotive, metallurgy, machinery, electronic & electrical, food, chemical, medical and so on. With experienced engineers and talented workers, we are able to evaluate projects and drawings properly, make valuable suggestion, supply satisfying products. Our materials including:
- Aluminium Oxide ( 95% 96% 99% 99.5% 99.7% Al2O3 )
- Zirconium Oxide ( Yttria stabilized ZrO2 )
- Silicon Nitride ( Gas pressure sintered & Hot pressed Si3N4 )
- Boron Carbide ( B4C )
- Boron Nitride ( Hot pressed BN )
- Machinable Glass Ceramic
 
Alumina in purity from 90% to 99.7%, yttria stabilized zirconia (Y-PSZ), hot pressed boron nitride, machinable glass ceramic, boron carbide, silicon nitride, mullite and cordierite.
Aluminium oxide (Al2O3) is the most important technical oxide ceramic material and has the widest range of applications. Densely sintered aluminium oxide is characterised by

? high strength and hardness,
? temperature stability,
? high wear resistance and corrosion resistance even at high temperatures.
 
 

Item	Test Condition	Unit&Symbol	95% Al2O3	99% Al2O3	99.7% Al2O3
The main chemical ingredient			Al2O3	Al2O3	Al2O3
Bulk Density		g/cm3	3.6	3.89	3.96
Maximum Use Temperature			1450°C	1600°C	1650°C
Water absorption		%	0	0	0
ROHS Hardness			≥85	≥89	≥89
Flexural strength	20° C	MPa (psi x 103)	358 (52)	550	550
Compressive Strength	20° C	MPa (psi x 103)	2068 (300)	2600(377)	2600(377)
Fracture Toughness	K(I c)	Mpa m1/2	4 - 5	5.6	6
Coefficient of thermal expansion	25-1000° C	1X 10-6/°C	7.6	7.9	8.2
Coefficient of thermal conductivity	20° C	W/m °K	16	30	30.4
Thermal Shock Resistance	Tc	°C	250	200	200
Dielectricity constant	1MHz.25°C		9	9.7	9.7
Dielectric strength		ac-kV/mm (ac V/mil)	8.3 (210)	8.7 (220)	8.7 (220)
Volume Resistivity	100°C	ohm-cm	> 1013	> 1014	> 1014

 
We can also design upon the customers' detailed requirements.





COMPANY DETAILS:

HIGHBORN is one of the leading high quality quartz glass and precise ceramics manufacturer and supplier in China.
HIGHBORN has always been a defining force in the sale and fabrication of quartz glass within the semi-conductor, chemical, solar Energy and precise ceramics within semi-conductor , solar energy, textile, electronic, and laser industries.

Package:
Carton box,then wooden box to avoid the broken.

Payment term :

T.T OR Western Union OR Credit Card

Delviery time:
about 7 days for the stock sample;
about 20 days for the  bulk quantity.
FAQ
 
 
1.Where is your main market?
We have been exported to USA, Korea, UK, France, Russia, Germany, India, Spain, Brazil etc, so far, there is about 151 countries we have been exported, we also get good reputation from our customers.
 
2. What is your payment term?
We mainly accept T/T, West Union, Credit card and L/C.
Paypal will be available in the near future.
 
3. For alumina ceramic, what about the forming method?
 Drying pressing              
 Isostatic pressing
 Hot pressing casting
 
4.What about the package?
We pack with plastic bubble paper, carton box, then safe wooden box outside, we can control the breakage less than 1%.